I've loved my 14-150mm since day 1. That with a polarizer is a fantastic travel lens. On camping trips it lives on my E-M5 and does everything from landscape to action shots of my daughter running around.

I love the pictures. Could I be cheeky and ask how you focused for the last two shots. In the third one the flowers are in focus but Big Ben is nicely left in the background, in the next shot both the statue and Big Ben are in focus. I notice that the camera setting is almost identical for both, so I can only assume it must have been something to do with where you placed the focus. I hope that you don't mind me asking, it's just that sometimes I get the blurred background when what I am expecting is more depth of field, even with small apertures.

It is all to do with the distance to the focal point in relation to the background and how far you are from the focal point. For example if you are focusing on something that is 2ft from you and the background is 50ft away it will throw the background nicely out of focus. If you focus on something that is 10ft from you and the background is 20ft the background will be more in focus. It is all about ratios and once you start playing around you will soon see how each lens performs. If I had one tip, it would be to stick to one prime lens and keep playing around with the two distance ratios, foreground and background. Hope this all makes sense and helps.